Octave Jokung

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Jokung Octave is currently Professor of Finance at IAE School of Management, University of Valenciennes (France). After his third cycle in Mathematics where he dealt with optimization and orthogonal polynomials, he met Professors Michel Levasseur and Louis Eeckhoudt. Then, he held his PhD in Finance and the «Agregation » Exam. His research covers the area of risk theory and especially the case of several risks. He published more than thirty articles in international academic journals like Management Science, Finance, Review of International Economics, Mathematical Finance, Decision Theory...He also published fifteen books in Economics, Finance and Management. He acts as an expert with different authorities and firms within Africa (Benin, Cameroon, Gabon, Ivory Cost, Mali, Morocco, Senegal, South Africa...)

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Papers by Octave Jokung

Chapitre 1. Entrepreneuriat organisationnel et développement des family business au Cameroun : enjeux et perspectives

Chapitre 12.Les restructurations

De Boeck Supérieur eBooks, Feb 1, 2004

Chapitre 2. Le rendement et le risque

De Boeck Supérieur eBooks, Feb 1, 2004

Chapitre 1. Éléments de mathématiques financières

De Boeck Supérieur eBooks, Feb 1, 2004

Chapitre 5. L'évaluation des actions ordinaires

De Boeck Supérieur eBooks, Feb 1, 2004

Chapitre 8. La décision d'investissement

De Boeck Supérieur eBooks, Feb 1, 2004

Chapitre 7. Le modèle d'équilibre des actifs financiers (MEDAF). Le modèle de marché. L'efficience des marchés

De Boeck Supérieur eBooks, Feb 1, 2004

Chapitre 11. Les fusions-acquisitions

De Boeck Supérieur eBooks, Feb 1, 2004

Chapitre 9. La décision de financement. Le coût du capital

De Boeck Supérieur eBooks, Feb 1, 2004

Chapitre 10. La décision de distribution. La politique de dividende

De Boeck Supérieur eBooks, Feb 1, 2004

Chapitre 4. L'évaluation des obligations à taux fixe. Le risque de taux

De Boeck Supérieur eBooks, Feb 1, 2004

Chapitre 3. Les options

De Boeck Supérieur eBooks, Feb 1, 2004

Chapitre 6. L'évaluation des options

De Boeck Supérieur eBooks, Feb 1, 2004

Chapitre 1. Entrepreneuriat organisationnel et développement des family business au Cameroun : enjeux et perspectives

Capacités entrepreneuriales : des organisations aux territoires, 2018

Non-differentiable transformations preserving stochastic dominance

Journal of the Operational Research Society, 2012

In this paper, we solve the following problem: when does a stochastic improvement in one risk mai... more In this paper, we solve the following problem: when does a stochastic improvement in one risk maintain itself under a non everywhere continuously differentiable transformation of this risk? Using the notion of divided differences, we show that stochastic dominance at the third (and higher) order, and sometimes at the second one, is not preserved after simple piecewise linear transformation of the initial risk. Our analysis complements the one that exists for everywhere continuously differentiable transformations.

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The Determinants of Capital Flows in Emerging Countries: The Case of Thailand

Thammasat Review, 2000

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Risky Production and Hedging in Emerging Markets

Several financial decisions are made in the presence of more than one single source of risk. Amon... more Several financial decisions are made in the presence of more than one single source of risk. Among those risks, the class of non-tradable risks or background risks is preeminent. This chapter addresses the question of whether an increase in initial wealth leads an individual to hedge in the forward market in the presence of a background risk.We also analyse how far the behaviour of the decision-maker is affected by the presence and the modification of a non-tradable risk like nondiversifiable income, human capital, political risk, non-marketable assets, informational asymmetries and irreplaceable commodities. This is the case when investing in emerging markets, where investors face two sources of risk: economic risk and background risk. Investors in emerging markets face non-tradable risks which add background to their investment, and when this background risk increases the investors’ willingness to hold risky assets must decrease.

A note on prudence and prevention against a health risk in a two-period model

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Preserving Decreasing Nth Degree Risk Aversion

This note presents the concept of Nth degree risk aversion and shows that the decrease of the coe... more This note presents the concept of Nth degree risk aversion and shows that the decrease of the coefficients of absolute and that of relative Nth degree risk aversion are preserved in the presence of additive and multiplicative background risk. This paper extends the results concerning absolute risk aversion, absolute prudence and relative risk aversion to higher orders.

Risk lovers, mixed risk loving and the preference to combine good with good

This paper examines the concept of 'risk loving' (that is risk seeking, intemperance, edg... more This paper examines the concept of 'risk loving' (that is risk seeking, intemperance, edginess, etc.), which can be characterised by preferences over simple lotteries. This paper analyses the notion of preferring to combine good with good, and bad with bad, as opposed to combining good with bad as usual. The significance of such preferences has implications on utility functions and are analysed in the paper. This paper extends Eeckhoudt and Schlesinger (2006) results to risk lovers, the results from Crainich et al. (2013) are also generalised to higher orders. We also generalise to higher orders the concept of bivariate risk seeking, introduced by Richard (1975) and called correlation loving by Epstein and Tanny (1980). In the expected utility framework, risk loving of order (N, M) coincides with the non-negativity of the (N, M)th partial derivative of the utility function. In dealing with mixed risk loving utility functions, we give several useful properties, for example, m...

Chapitre 1. Entrepreneuriat organisationnel et développement des family business au Cameroun : enjeux et perspectives

Chapitre 12.Les restructurations

De Boeck Supérieur eBooks, Feb 1, 2004

Chapitre 2. Le rendement et le risque

De Boeck Supérieur eBooks, Feb 1, 2004

Chapitre 1. Éléments de mathématiques financières

De Boeck Supérieur eBooks, Feb 1, 2004

Chapitre 5. L'évaluation des actions ordinaires

De Boeck Supérieur eBooks, Feb 1, 2004

Chapitre 8. La décision d'investissement

De Boeck Supérieur eBooks, Feb 1, 2004

Chapitre 7. Le modèle d'équilibre des actifs financiers (MEDAF). Le modèle de marché. L'efficience des marchés

De Boeck Supérieur eBooks, Feb 1, 2004

Chapitre 11. Les fusions-acquisitions

De Boeck Supérieur eBooks, Feb 1, 2004

Chapitre 9. La décision de financement. Le coût du capital

De Boeck Supérieur eBooks, Feb 1, 2004

Chapitre 10. La décision de distribution. La politique de dividende

De Boeck Supérieur eBooks, Feb 1, 2004

Chapitre 4. L'évaluation des obligations à taux fixe. Le risque de taux

De Boeck Supérieur eBooks, Feb 1, 2004

Chapitre 3. Les options

De Boeck Supérieur eBooks, Feb 1, 2004

Chapitre 6. L'évaluation des options

De Boeck Supérieur eBooks, Feb 1, 2004

Chapitre 1. Entrepreneuriat organisationnel et développement des family business au Cameroun : enjeux et perspectives

Capacités entrepreneuriales : des organisations aux territoires, 2018

Non-differentiable transformations preserving stochastic dominance

Journal of the Operational Research Society, 2012

Download

The Determinants of Capital Flows in Emerging Countries: The Case of Thailand

Thammasat Review, 2000

Download

Risky Production and Hedging in Emerging Markets

A note on prudence and prevention against a health risk in a two-period model

Download

Preserving Decreasing Nth Degree Risk Aversion

Risk lovers, mixed risk loving and the preference to combine good with good

Octave Jokung

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